


HKS PULLEY UPGRADE KITSKU: 12002 KK001 UPC: 4957266620069 HKS Pulley Upgrade Kit for 2004 2021 Subaru WRX STI The HKS Pulley Upgrade Kit transforms supercharger performance on Subaru WRX STI models from 2004 to 2021 equipped with HKS GT2 Supercharger. This kit features a smaller drive pulley that spins the supercharger faster for higher boost levels and substantial horsepower increases. Direct bolt on design ensures seamless integration and reliable power delivery on the
Quick Dispatch:
Your HKS PULLEY UPGRADE KIT orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.8 ★★★★★
Based on 2452 reviews
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Product Reviews
★★★★★ 5
Softness/ comfy, great to hug and good on my neck.
Size: Queen - 18" X 28", Number of Items: 2
Second set. I’ve had the first set from r about 6 months with no problems. Very comfy and good for my neck! So I, just bought a second set .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
★★★★★ 4
Comfy affordable pillows
Size: Queen - 18" X 28", Number of Items: 2
Comfortable and affordable pillows. Fluffy and soft. Average size. Good quality but I enjoy my cooling pillows a bit more.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
★★★★★ 5
Ordered these pillows in the past. Great quality
Size: Queen - 18" X 28", Number of Items: 2
Luv the support, price and quality. And it does cool. I an sure this is my 2nd time ordering. Crazy but my toy breed dogs luv the pillows over their soft ultra lux beddings
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Just right
Size: Queen - 18" X 28", Number of Items: 2
Comfy and just right
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Reviewed in the United States on June 1, 2026
★★★★★ 3
Something changed?
Size: King - 19" X 34", Number of Items: 2
I ordered these last year and loved them! Not too soft not too firm.
I accidentally left mine (my favorite pillow) at an Airbnb. I wanted to replace it and all that was left was this two pack. These are quite softer than the first ones I ordered. Really disappointing as they were my favorite.
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Reviewed in the United States on June 6, 2026
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